Home / 75,136,309.65-112,702,860.18-20,548,895.31

Finding the Fourth Proportional to 75,136,309.65, 112,702,860.18 and 20,548,895.31

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Solution

The fourth proportional to 75,136,309.65, 112,702,860.18 and 20,548,895.31 is: 30,822,904.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,136,309.65 : 112,702,860.18 = 20,548,895.31 : x
  2. Step 2: Convert to fraction form
    75,136,309.65/112,702,860.18 = 20,548,895.31/x
  3. Step 3: Cross multiply
    75,136,309.65x = 112,702,860.18 × 20,548,895.31
  4. Step 4: Simplify right side
    75,136,309.65x = 2,315,919,274,976,388
  5. Step 5: Solve for x
    x = 2,315,919,274,976,388/75,136,309.65
  6. Step 6: Final answer
    x = 30,822,904.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.